Fitness & Yoga, Fitness Studios/Gyms, Martial Arts/MMA/Boxing JAB MMA is a fitness studio offering Boxing, Muay Thai, Citcuit, Crossfit and Brazilian Jiu-Jitsu classes. http://www.jabmma.com/ 5/F Crawford House, 70 Queens Road +852 2851 6684 f https://www.facebook.com/studiobyJAB/ admin@studiojab.hk